Form F MTH 23 Final Exam- Page 4 of 9 rvey of 340 customers about satisfaction w

Question

Form F MTH 23 Final Exam- Page 4 of 9 rvey of 340 customers about satisfaction with service (Dissatisfied, e of customer (Walk-n, saw a TV ad, or Referred). The results follow Neutral, Satisfied, or Very Satisfied) and type ( Walk-In TV Ad Referred Total Dissatisfied Neutral Satisfied Very Satisfied Total 12 24 41 35 74 134 97 340 21 18 52 17 105 146 Assume the table represents the entire population of customers. Find the probability that a customer is (a) (2 points) Dissatisfied (b) (2 points) Dissatisfied and a walk-in (c) (2 points) Referred (d) (2 points) Very satisfied, given referred (e) (4 points) Very satisfied or saw a TV ad Answer: The probability is Answer: The probability is Answer: The probability is Answer: The probability is Answer: The probability is

Explanation / Answer

a)P(dissatisfied)=35/340=0.1029

b) P(dissatisfied and walk in)=21/340=0.0618

c)P(referred)=146/340=0.4294

d)P(very satisfied|refered)=52/146=0.3562

e)P(verty satisfied or saw a TV)=(97+105-28)/340=0.5118

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